var createError = require('http-errors');
var express = require('express');
var path = require('path');
// 引入cookie模块
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var classifyRouter = require('./routes/classify');
var cartRouter = require('./routes/cart');
var mineRouter = require('./routes/mine');
var registerRouter = require('./routes/register');
var loginRouter = require('./routes/login');


var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
// 使用cookie中间件
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/classify', classifyRouter);
app.use('/cart', cartRouter);               
app.use('/mine', mineRouter);
app.use('/register', registerRouter);
app.use('/login', loginRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

const config = {
  port: 3000,
  host: 'localhost',
}

app.listen(config.port,config.host,()=>{
  console.log(`Server is running on http://${config.host}:${config.port}`)
})

module.exports = app;
